diff --git a/opcua2mqtt/config.json b/opcua2mqtt/config.json
index 9d4cd92..ea12576 100644
--- a/opcua2mqtt/config.json
+++ b/opcua2mqtt/config.json
@@ -2,7 +2,7 @@
     "mqtt": {
         "broker": "172.16.2.16",
         "port": 1883,
-        "publishTopicPrefix": "opcua",
+        "publishTopicPrefix": "opcua"
     },
     "stats": {
         "topic": "statistics",